Why exactly is dirt brown?

Question

and whats the difference between soil and dirt?

Answer 1

Soil is formed from breakdown of rocks due to the various processes of erosion and degradation that prevail in nature. The rocks contain some amounts of iron as an oxide or as a compound that can be converted into the higher oxides of iron i.e. ferric oxide which in turn could get hydrated, under exposure to atmosphere. These forms of iron oxide are invariably brown in colour giving the soil a brownish colour. The intensity of brown colour is modified by other components present in the parent rock, whereby you get soils of various shades viz. cream, yellow, red, brown dark brown, brownish black etc.

Answer 2

Hi. Earth has many colors and dirt has too. Soil can be dirt mixed with organic material, purely organic, purely dirt, or some other combination. Same with clay. Red, gray, whitish, etc. But usually dirt brown is kind of a milk chocolate color.

Answer 3

Soil is a dark, rich colour. Dirt is a lighter textured colour, depending on where the dirt is. Dirt is a mixture of different materials (rocks, organic material), too, so you're going to get a contrast of different 'browns' and 'beiges'.